TriVium [India] Software Pvt. Ltd. Offers Software for Call Management and Billing Solution. TriVium [India] Software Pvt. Ltd. Manufactures and designs software and solutions for Voice and Data Convergent Platforms. The Software for Call Management and Billing Solution comes under the brand name "TeleAssist" is a comprehensive call management and billing solution for assisted living facilities. The Software for Call Management and Billing Solution provides the assisted living market the tools to make a quick return on investment.